Vulcanizing device.



H. GIUSTI. VULGANIZING DEVICE.

APPLIUMION FILED JAN. 2a, 1913.

1,081,824, Patented Dec. 16, 1913.

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HENRY GIUSTI, OF FRANKFORD, PENNSYLVANIA.

VULGANIZING DEVICE.

To aft eti/wm e' 15 may con com.

Be it known that I, llnxnr Gios'rr, a citi- Zen of the United States, residing at Frankford, in the county ot lhiladelphia and State of Pennsylvania, have invented cer tain new and useful Improvements in Vulfcanizing Devices; and I do declare the 'following to be a full, clear, and exact description et the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in vnlcanizing devices and particularly to devices for vulcanizing rubber tires.

One object ot' the invention is to provide a vulcanizing device of this character having an improved construction and arrangement of expansible heat applying members and means whereby the latter may be readily expanded to the desired extent within the tire or other object to be vulcanized.

Another object is to provide a vulcanizing device of the character described which will be simple, strong, durable and inexpensive in construction7 etlicient and reliable in operation and well adapted to the pui pose for which it is designed.

`With these and other objects in View, the invention consists of certain novel features of construction, and the combination and arrangement of parts as will be moreiully described and claimed.

In the accompanying drawings: Figure 1 is a vertical longitudinal section of a portion of the tire showing the application of my improved vnlcanizing device, parts oi the latter being broken away and in section Fig. 2 is a longitudinal sectional View ot' the device; Fig. 3 is a plan view of the inner sides of the two heat applying devices ot' the apparatus; Fig. 4 is a cross sectional View of the device and of the tire to which the same is applied taken on the line 4-4 of Fig. 1; Fig. 5 is a similar View taken on the line 5 5 of Fig. 1; Fig. 6 is a detail view of the inner end or head of one of the eX pending members of the device.

Specification of Letters Patent.

Application led January 23, 1913.

atcnted Dec. 16, 913.

Serial No. 743,635.

provide between the upper edges of said sides a longitudinal space which is increased to a greater or less extent when the sides ot' the shell or casing are expanded in the tire in a manner hereinafter described.

Arranged in the shell or casing l are two eounter-purt hollow segmental heut apply ing members 53 and 1? each ol which is of lsubstantially semi-circul=uf shape in cross section and are preferably formed ot sheet metal. lhe membersI i? und Il are closed on all. sides and at their ends lo lorm Huid-tight containers 'for a heating lluid which is supplied therelo in u manner hereinafter dcscribed. The members i) and il are arranged side by side in the shell or casing l with their dat sides adjacent to and opposing each other as shown. The members when thus arranged are held in alinenient und in parallel relation by means ol guide studs flwhieh are secured to the llat inner side 01" the member 3 and are adapted to be cn gaged with sockets i formed in the adjacentI side oi" the member Q as clearly shown in l*`igs. 3 and 5 of the drawings,

In the liat sides of the members l and 25 near each end thereof are formed longitudinal recesses or channels (j which incline 'from the outer ends ol the members toward each other as shown. The inner walls oil the recesses or channels (l taper or incline Yfrom the outer toward the inner ends thereof as clearly shown in Fig. 2 of the drawings. The recesses or channels in the ends ot" the opposing members are arranged in line or directly opposite each other and are provided to receive expanding devices hereinafter described. ln the opposite [lat sides ot' the members i. and 3 adjacent to the outer ends ot' the channels or recesses are formed sockets 7 und in said flat sides of the members between the outer ends of the channels or recesses (l and the outer ends of the members are il'ormed longitudinal grooves 8 which are intersected by the sockets 7.

The expanding mechanism for the heat applying members 2 and 3 conipriscs llexible adjusting rods tl which are arranged at and project between the ends of the members 2 and 3. The rods 9 are formcdin sections connected by universal joints l0 as shown. The outer sections 1l o the rods extend inwardly at substantially rightanglcs to the inner sections 12 and said outer sections have on their outer ends hand wheels 13 whereby the rods are ope ated The inner' sections 12 of the rods are threaded and project between the dat sides of the members 2 and 3 and when the fiat sides of said niembers are in engagement, said inner' sections of the rods lie in the grooves 8 in said flat inner sides of the members. The threaded sections l2 et the rods have swiveled on their inner ends 'tapered or substantially triangular shaped expanding heads 14 which are slidably engaged with the channels or recesses 6 in the flat sides ot the members 2- and 3. `When thus arranged. the tapered edges o1 the heads 1-/1 engage the inclined inner walls ot the recesses or channels 6 whereby 'when the heads 1-1 are forced in? wardly the heat applying sections 2 and 3 will be forced apart or expanded in the shell or casing 1 which, owing to its flexible construction is also expanded by the heads 14. rl'he threaded ends ot the rods 12 have an operative engagement with nuts 15 on the opposite sides ot which are formed laterally extending studs 16 which are engaged with the sockets 7 in the tlat sides ot the members 2 and whereby said nuts are held in position te receive the threaded ends ot the rods 12 which when turned in the proper direction are screwed inwardly through said nuts, thus projecting the heads lll into the recesses 5 which will expand or spread the members 2 and 3^ in the manner described. iVlien the rods 9 are turned in the reverse direction, the expanding .heads l will be retracted thereby permitting the heat applying members 2 and to contract and come together to facilitate the disengagement of the device from the tire.

Connected to each end of the heat applying members Q and 3 are short steam inlet. and discharge tubes 1T and 18 having on their outer ends couplings 19 to which steam conducting and discharging tubes (not shown) may be connected for supplying the members 2 and with steam to provide heat which is applied by said members to the inner side ot the tire or other object with which the device is engaged.

ln the operation ot' vthe device, the heat applying members 2 and 3 are engaged with the shell or casing' 1 and the expanding device placed between said members, after which the shell and expanding members are inserted in the tire or other object to be vulcanized. After these parts have been thus applied to the inner side of the tire the latter is placed in a mold of the usual or any'suitable construction. The expanding rods 9 are now turned in the proper direction for projecting the expanding heads inwardly inthe recesses 6, thus expanding or spreading said members and the shell or casing-'outwardly in the tire and tightly clan'iping the latter in the mold. After the portion otnthe tire to-loe vulcanized has thusbeen clamped in the mold the steam or other aesinet heating fluid is turned into one end of the heat applying members 2 and 3 and circulates through the same and is discharged from the opposite ends thereof. The heat thus supplied to the members 2 and 3 is ap' plied by the latter through the shell or casing-1 to the inner surface of the portion of the tire with which said members are engaged. Then the v'ulcanizing operation has been completed, the steam may be cut oilv and theexpanding rods turned in the proper direction to permit the heat applying members to. contract or come together in the manner described, thus permitting the device Ato be shifted to another part of the tire or to be readily removed therefrom.

From the foregoing description taken in crrnncction with the accompanying drawings, the construction and operationof the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any ol thel advantages ot' the invention as claimed.

Having thus described'my invention, what l claim is:-

1.111 a vulcanizing device, a shell or casing, a pair o'l hollow heat applying members engaged with said casing, said members l'iaving in their adjacent surfaces inclined recesses, nuts secured in the opposing taces ot' said members, threaded expanding rods engaged with said nuts, tapered expanding heads on the inner ends of said rods to engage the inclined recesses in the opposing sides ol` said heat applying members whereby when said rods are turned in the proper direction for projecting said heads, said members will be expanded in said shell or casingand the latter expanded in the tire or other object to be vulcanized.

2. In a vulcanizing device, an outer shell or casing open along its inner side, hollow fluid-tight expanding members arranged in said shell or casing, steam inlet and discharge tubes connected with the opposite ends of said Vmembers, coupling devices arranged on said tubes, 4nuts secured between the opposing sides of said heat applying members, threaded expanding rods having an operative engagement with said nuts, said rods being formed in a series of flexibly connected sections, ope 'ating devices on the cuter sections ot' said rods, and tapered expanding heads having a swiveled connection with the inner ends of said rods Whereby when the latter are turned in the proper direction, said heat applying members are expanded.

ln'a vulcanizing apparatus,l an outer shell or casingopen along its inner side,

ing members arranged in said shell or casing, said members having flat inner opposing sides provided with longitudinal tapered or inclined recesses, longitudinal grooves and nut receiving sockets, nuts having thereon laterally extending studs engaged with said'soekets'whereby said nuts are held in position between said heat applying members, flexible expanding rods having threaded inner sections operatively engaged with said nuts, and tapered expanding heads swiveled on the inner ends of said threaded inner sections of the rods and having an operative engagement with said tapered recesses whereby when the rods are turned in the proper direction for projeoting and retracting said heads, said heat applying members will be expanded and permitted to contract, and studs arranged on the inner side oi one of said heat applying members and adapted to be engaged with the adjacent side of the opposing member whereby .said membersl are held in alinenient.

ln testimony whereof I have hereunto set my' hand in presence of two subscribing witnesses.

L. HILTON, M. H. STUARD. 

